TiO2/P3HT复合太阳能电池的制备和性能研究

用简单易行的一步水热法在透明导电玻璃FTO上制备了直径、密度及取向可控的TiO2纳米阵列,FTO同时作为底电极,用旋涂法将有机P型聚合物P3HT复合到阵列表面,磁控溅射制备Pt电极,组装TiO2/P3HT有机无机复合太阳能电池.通过XRD、SEM、紫外-可见光谱仪、I-V/J-V特性曲线等表征TiO2阵列薄膜及器件的结构、形貌和光电特性.研究制备TiO2纳米阵列的水热时间及无水乙醇的量对薄膜质量及复合太阳能电池光电性能的影响.通过优化各项参数,FTO/TiO2/P3HT/Pt简单双层结构的光器件在AM1.5,光强100mW/cm2下开,路电压Voc达到0.50V,光电转换效率IPCE达到0.11%.

Preparation and characterization of TiO2/P3HT thin film hybrid solar cell

TiO2 nanoarrays with controllable diameter, density, and orientation were prepared on transparent conductive glass FTO through a simple one step hydrothermal method. P-type organic polymer P3HT was spin coated onto the nanoarrays to form a hybrid p-n junction. Top Pt electrode was fabricated by magnetron sputtering and thus finished the fabrication of a TiO2/P3HT organic/ inorganic hybrid solar cell. The TiO2 thin films and TiO2/P3HT devices were characterized by XRD, SEM, UV-visible spectrometer and I-V/J-V characterization. Effect of hydrothermal reaction time and amount of ethanol on the structure and quality of TiO2 nanoarrays and photovoltaic property of TiO2/ P3HT solar cells were investigated. Best result was achieved with a two layer simplified structure Pt/ P3HT/TiO2/FTO organic/inorganic solar cell which has an open-circuit voltage of 0. 50 V, and efficiency IPCE of 0. 11% in AM1.5,light intensity 100 mW/cm2 solar illumination.